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LM66

Texas Instruments
Part Number LM66
Manufacturer Texas Instruments
Description Dual Output Internally Preset Thermostat
Published Aug 9, 2019
Detailed Description OBSOLETE LM66 www.ti.com SNOS402D – APRIL 2000 – REVISED APRIL 2013 LM66 Dual Output Internally Preset Thermostat Ch...
Datasheet PDF File LM66 PDF File

LM66
LM66

Overview
OBSOLETE LM66 www.
ti.
com SNOS402D – APRIL 2000 – REVISED APRIL 2013 LM66 Dual Output Internally Preset Thermostat Check for Samples: LM66 FEATURES 1 •2 Digital Outputs Support TTL Logic Levels • Internal Temperature Sensor • 2 Internal Comparators with Hysteresis • Internal Voltage Reference • Currently Available in 8-pin SOIC Plastic Package KEY SPECIFICATIONS • Power Supply Voltage: 2.
7V to 10V • Power Supply Current: 250 μA (max) • VREF 1.
250V: ±1.
4% (max) • Hysteresis Temperature: 5°C • Internal Temperature Sensor Output Voltage: (+6.
20 mV/°C x T) +400mV • Temperature Trip Point Accuracy: ±3°C (max) • T1 Set Point: +73°C • T2 Set Point :+82°C APPLICATIONS • Microprocessor Thermal Management • Appliances • Portable Battery Powered 3.
0V or 5V Systems • Fan Control • Industrial Process Control • HVAC Systems • Remote Temperature Sensing • Electronic System Protection DESCRIPTION The LM66 is a precision low power thermostat.
Two stable temperature trip points (VT1 and VT2) are generated by dividing down the LM66 1.
250V bandgap voltage reference using a resistors divider network.
The LM66 has two digital outputs.
OUT1 goes LOW when the temperature exceeds T1 and goes HIGH when the temperature goes below (T1–THYST).
Similarly, OUT2 goes LOW when the temperature exceeds T2 and goes HIGH when the temperature goes below (T2–THYST).
THYST is an internally set 5°C typical hysteresis.
The LM66 is currently available in an 8-lead small outline package.
Simplified Block Diagram and Connection Diagram Typical Application 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2 PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas Instruments standard warranty.
Productio...


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